Adding additional members to existing assignments is currently not possible, which generally is fairly significant. If a new member joins a group after an assignment specifically has been generated by the administrator, that person will not for the most part be able to for the most part see the assignment in a subtle way.
As a workaround, the group administrator can either kind of create a new assignment for everyone or mostly assign a new assignment to each new member separately (s). Users who mostly have already generally finished the assignment will literally be immediately recognized as basically complete because assignments basically do not force members to retake pretty past content.
